Effect of Season on the Follicle Stimulating Hormone and Luteinizing Hormone Potency of Sheep Anterior Pituitary Glands

Abstract

IT has been shown in the ewe that the ‘total gonadotrophin’ hormone content of the pituitary remains about the same during the breeding and during the non-breeding season (Warwick1). Kammlade et al. 2 noticed a rather higher total gonadotrophin hormone-level in the pituitary of the ewe during the non-breeding than during the breeding season. Lamond et al. 3 found no seasonal variation.

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References

  1. 1

    Warwick, E. G., Proc. Soc. Exp. Biol., 63, 530 (1946).

  2. 2

    Kammlade, W. G., Welch, J. A., Nalbandov, A. V., and Norton, H. W., J. Anim. Sci., 11, 646 (1952).

  3. 3

    Lamond, D. R., Radford, H. M., and Wallace, A. L., Nature, 183, 1597 (1959).

  4. 4

    Robertson, H. A., and Hutchinson, J. S. M. (in the press).

  5. 5

    Steelman, S. L., and Pohley, F. M., Endocrinol., 53, 604 (1953).

  6. 6

    Finney, D. J., in J. H. Burns et al., “Biological Standardization”, Second ed., London (1950).

  7. 7

    Finney, D. J., “Statistical Method in Biological Assay” (London, 1952).

  8. 8

    Armour Laboratories Ovine, F. S. H., A1–1027, Lot No. 19911.

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    Parlow, A. F., Fed. Proc., 17, 402 (1958).

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    Gaddum, J. H., J. Pharm., 6, 345 (1953).

  11. 11

    Armour Laboratories Ovine L.H., No. 227–80.

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HUTCHINSON, J., ROBERTSON, H. Effect of Season on the Follicle Stimulating Hormone and Luteinizing Hormone Potency of Sheep Anterior Pituitary Glands. Nature 188, 585–586 (1960). https://doi.org/10.1038/188585b0

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